https://igl-lang.org/2026-07-31 https://igl-lang.org/about.html2026-07-31 https://igl-lang.org/spec/2026-07-31 https://igl-lang.org/spec/blocks.html2026-07-31 https://igl-lang.org/spec/diagnostics.html2026-07-31 https://igl-lang.org/spec/formats.html2026-07-31 https://igl-lang.org/tools/2026-07-31 https://igl-lang.org/tools/igli.html2026-07-31 https://igl-lang.org/tools/conformance.html2026-07-31 https://igl-lang.org/examples/2026-07-31 https://igl-lang.org/download/2026-07-31 https://igl-lang.org/databases/2026-07-31